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105331-01C
4
For more information, visit www.desatech.com
For more information, visit www.desatech.com
INSTALLATION
WARNING: Review and understand the warnings
in the
Safety Information
section, pages 2 and 3. They
are needed to safely operate this heater. Follow all
local codes when using this heater.
1. Provide propane supply system (see Propane Supply, page 3).
2. Connect fuel gas fitting on hose/regulator assembly to pro-
pane tank(s). Turn fuel gas fitting counterclockwise into threads
on tank. Tighten firmly using a wrench.
IMPORTANT:
Posi-
tion regulator so that hose leaving the regulator is in a hori-
zontal position (see Figure 6, page 5). This places the regula-
tor vent in the proper position to protect it from the weather.
WARNING: Test all gas piping and connections
for leaks after installation or servicing. Never use an
open flame to check for a leak. Apply a mixture of
liquid soap and water to all joints. Bubbles forming
show a leak. Correct all leaks at once.
THEORY OF OPERATION
The Fuel System: The hose/regulator assembly attaches to the
propane gas supply. This provides fuel to the heater.
The Air System: The motor turns the fan. The fan pushes air into and
around the combustion chamber. This air is heated and provides a
stream of clean, hot air.
The Ignition System: The piezo ignitor lights the burner.
The Automatic Control System: This system causes the heater to
shut down if the flame goes out.
Figure 2 - Cross Section Operational View
ASSEMBLY
1. Remove screw from top of fan guard (see Figure 3). Dis-
card screw.
2. Insert nut clip (provided with handle) with flat side facing up
through slot in top of shell. Align holes in nut clip with screw
hole behind slot in top of shell. (see Figure 4).
3. Place handle over hole and clip. Insert two screws (provided with
handle) through handle and tighten into shell. Make sure rear screw
goes through shell and into fan guard. Tighten screws firmly.
Figure 3 - Removing Screw from Top of Fan Guard
Figure 4 - Installing Nut Clip
Figure 5 - Attaching Handle
Screw
Nut Clip
Slot
Shell
Screws
Handle
Rear of
Heater
Nut Clip
Flat Side Facing Up
Air For Combustion Air For Heating
Combustion
Chamber
Motor
Clean
Heated
Air Out
(Front)
Hose/
Regulator
Assembly
Cool Air
In (Back)
Fan
THEORY OF OPERATION
ASSEMBLY
INSTALLATION